Determination of explosive vapor concentrations with remote sampling in the control of objects
- Autores: Gruznov V.1, Baldin M.1, Pryamov M.1, Maksimov E.2
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Afiliações:
- Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch
- Military Unit No. 35533
- Edição: Volume 72, Nº 11 (2017)
- Páginas: 1155-1160
- Seção: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182673
- DOI: https://doi.org/10.1134/S1061934817110041
- ID: 182673
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Resumo
A procedure is proposed for the determination of the vapor concentration of 2,4,6-trinitrotoluene (TNT) in air at a level of 10–16 g/cm3 in the control of objects for the presence of TNT. The procedure includes preconcentration of TNT vapors and gas chromatographic determination with a limit of TNT detection at a level of 0.08 ± 0.02 pg in a sample. The procedure was applied to the control objects in cells of typical automatic luggage locker with sampling through sampling air ducts. A measure of sample losses as the breakthrough of vapors through sampling air ducts and gas dynamic conditions for the reduction of vapor losses as the ratio of diffusion coefficient to the air duct flow rate were proposed. The time constant of the saturation of the sampling system with TNT vapors and the time constant of its cleaning were determined. It was shown that TNT vapors can be detected virtually satisfactorily near TNT-containing objects with sampling through long channels.
Sobre autores
V. Gruznov
Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch
Autor responsável pela correspondência
Email: GruznovVM@ipgg.sbras.ru
Rússia, Novosibirsk, 630090
M. Baldin
Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch
Email: GruznovVM@ipgg.sbras.ru
Rússia, Novosibirsk, 630090
M. Pryamov
Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch
Email: GruznovVM@ipgg.sbras.ru
Rússia, Novosibirsk, 630090
E. Maksimov
Military Unit No. 35533
Email: GruznovVM@ipgg.sbras.ru
Rússia, Moscow